I have had my Apple Watch for around 18months, done quite a bit of running and cycling during that time. Suddenly 2 days ago I arrived at work and the workout had turned out the activity had paused half way through the journey. The next morning it paused again and was also in "water mode" so I assume that somehow the screen has swiped over and tapped pause then the droplet. I then noticed on the return home journey that I had created around 5 segments (which requires a double tap I believe). It was raining for that last journey but otherwise dry. Been wearing the same gear, can't think what has changed.... Never had this before - any ideas!?